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Development and Analysing the Practical Use of Bleeding Reduction Agent for Concrete
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 Title & Authors
Development and Analysing the Practical Use of Bleeding Reduction Agent for Concrete
Han, Cheon-Goo; Hwang, Yin-Seong; Shin, Dong-In;
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It is necessary to reduce bleeding, which is a kind of segregation of fresh concrete, for improvement of quality of concrete structure. But, besides using high qualify material and adjusting mixture ratio, there is no easy solution to reduce bleeding by now. For that reason, this study is intended to develop bleeding reduction agent and to investigate its application. The test results are following. At first, recommended mixture ratio of bleeding reduction agent is proven to be MC viscosity agent : defoaming agent : superplasticyzer of 1 : 0.004 : 0.2. It goes to prove that bleeding reduction agent does not have bad effect on the quality of concrete such as fluidity, air content and the strength of hardened concrete etc, and can reduce bleeding effectively. Therefore it is thought that bleeding reduction agent can be applied to construction field effectively.
MC wiscosity agent;defoaming agent;superplasticizer;bleeding reduction agent for concrete;
 Cited by
블리딩저감형 AE감수제의 제조 및 실용성 검토,한천구;황인성;이승훈;김규동;

대한건축학회논문집:구조계, 2004. vol.20. 5, pp.75-82
블리딩저감형 AE감수제를 사용한 콘크리트의 공학적 특성,한천구;황인성;이승훈;김규동;

한국건축시공학회지, 2004. vol.4. 1, pp.133-140 crossref(new window)
Engineering Properties of Bleeding Reduction of Concrete Using AE Water Reducing Agent for the Type of Bleeding Reduction, Journal of the Korean Institute of Building Construction, 2004, 4, 1, 133  crossref(new windwow)
한국콘크리트학회, '최신 콘크리트공학' , 기문당, 1997, pp.212-216

한천구, '콘크리트 특성과 배합설계' , 기문당, 1998, p.66

A.M Nevile ; Properties of Concrete, Wiley, Fourth Edition

한천구, 황인성, '잔골재 및 혼화재료 요인이 콘크리트의 블리딩에 미치는 영향' , 대한건축학회논문집, 제18권 6호, 2002, pp.93-100

배정렬, 심보길, 황인성, 전충근, 한천구, '배합요인이콘크리트의 블리딩에 미치는 영향', 대한건축학회 추계학술발표논문집, 제 21권 제2호, 2001, pp.371-374

P. J. Wainwright, H. Ait-Aider, 'The Influence of Cement Source and Slag Addidons on the Bleeding of Concrete,' Cement and Concrete Research, Vol. 25, No. 7, 1995, pp.1445-1456 crossref(new window)